Demon in a Bottle (Part 1)
The When All Are One array worked even better than a mind link. It allowed its participants to gain full access to each other's body as long as they received permission and full trust.
Fyrwal was letting Tessa use her body as her own, taking control of the footwork and timing the blows to perfection. At the same time, Tessa was giving Fyrwal full access to her six extra heads.
A Titania lacked in mass compared to a Divine Beast while a Hydra lacked in strength. Together, they covered each other's weaknesses. It was like Thrud was fighting against two Hydras and two Titanias at the same time.
The Royal Fortress armor wasn't as heavy as the Arthan armor, but it was still made of Davross and the modern magic partly bridged the gap. On top of that, the Mad Queen couldn't use any spell in fear that Domination would turn it against her.
Yet her situation quickly got even worse.